A scientific study reported in two related articles in the Journal of Drug Issues raises serious doubts about the nations illegal drug use surveillance programs. Scientists, policy makers, and the media depend on surveys to identify the extent of drug use nationwide. The study documented how drug use surveys may not accurately reflect changes in drug use, but be more related to how willing a respondent is to disclose the extent and type of drug use.
Researchers at The National Development and Research Institutes, Inc. (NDRI), Andrew Golub, Hilary Liberty, and Bruce Johnson examined reported use of various drugs by arrestees interviewed at 37 locations across the nation as part of the Arrestee Drug Abuse Monitoring (ADAM) Program. This program, financed by the Federal government, both asks arrestees to report on their recent drug use and also tests their use with a urine sample. They found that responses often reflect differences in how willing the respondents were to disclose their use. This "willingness-to-disclose" varies depending on the type of drug questioned, location in the country, and population groups.
Arrestees were much more willing to disclose marijuana use than use of other drugs. Nearly all actual marijuana users in one city, as documented by urine testing, self-reported recent use 93% of the time. In another city, disclosure of marijuana use was 68%. Disclosure of cocaine and crack use was significantly lower, ranging from 28% up to 70%, depending on the location. There were also differences in disclosure associated with age, race, ethnicity, gender, and variation depending on the year of the survey.
Patrice Barron | EurekAlert!
Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT
Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
06.12.2016 | Materials Sciences
06.12.2016 | Medical Engineering
06.12.2016 | Power and Electrical Engineering